公开(公告)号：WO2016160393A1

公开(公告)日：2016-10-06

申请号：PCT/US2016/023388

申请日：2016-03-21

Applicant: DRESSER-RAND COMPANY

Inventor： SOROKES, James ,  KUZDZAL, Mark J. ,  BROWN, Paul Morrison ,  SARETTO, Silvano R. ,  SRINIVASAN, Ravichandra ,  SAILER, Logan

IPC: F04D29/44 ,  F04D17/08

CPC classification number: F04D29/444 ,  F04D17/10 ,  F05D2250/52

Abstract: A diffuser for a compressor includes an annular diffuser passageway defined by a hub wall and a shroud wall of a housing of the compressor. The annular diffuser passageway may be fluidly coupled with a centrifugal impeller configured to rotate with a rotary shaft of the compressor about a center axis. The diffuser may also include a plurality of low solidity diffuser vanes extending into the annular diffuser passageway from the hub wall or the shroud wall and arranged annularly about the center axis. The diffuser may further include a plurality of high solidity diffuser vanes disposed radially outward from the plurality of low solidity diffuser vanes and extending into the annular diffuser passageway from the hub wall or the shroud wall and arranged annularly about the center axis.

Abstract translation: 用于压缩机的扩散器包括由毂壁和压缩机的壳体的护罩壁限定的环形扩散器通道。 环形扩散器通道可以与配置成围绕中心轴线与压缩机的旋转轴一起旋转的离心式叶轮流体耦合。 扩散器还可以包括多个低固体扩散器叶片，其从轮毂壁或护罩壁延伸到环形扩散器通道中并围绕中心轴线环状布置。 扩散器还可以包括从多个低固体扩散器叶片径向向外设置并从毂壁或护罩壁延伸到环形扩散器通道中并且围绕中心轴线环状布置的多个高固体扩散器叶片。